Bug 2414894

Summary: CVE-2025-62727 python-starlette: Starlette DoS via Range header merging [epel-10]
Product: [Fedora] Fedora EPEL Reporter: Jon Moroney <jmoroney>
Component: python-starletteAssignee: Ben Beasley <code>
Status: CLOSED CURRENTRELEASE QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: epel10CC: code, paul.wouters, rominf
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["7743876c-a79b-4423-90ac-6606f7616f8d"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2025-11-13 20:56:23 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2406929    

Description Jon Moroney 2025-11-13 19:14:25 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

The following link provides references to all essential vulnerability management information. If something is wrong or missing, please contact a member of PSIRT.
https://spaces.redhat.com/display/PRODSEC/Vulnerability+Management+-+Essential+Documents+for+Engineering+Teams
Comment 1 Ben Beasley 2025-11-13 20:56:23 UTC 
Fixed in https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2025-4fc78d5a83 and https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2025-edea9d9cb0, which backported https://github.com/Kludex/starlette/commit/4ea6e22b489ec388d6004cfbca52dd5b147127c5 to Starlette 0.47.0. Based on available documentation, I believe that this should be a correct and sufficient fix. (Updating Starlette in EPEL10 is not a good option due to incompatible changes and version bounds in dependent packages.)